diff --git a/vue-cli-01-a-new-vue-project/src/components/FriendContact.vue b/vue-cli-01-a-new-vue-project/src/components/FriendContact.vue
index 48ae26c..bd512f1 100644
--- a/vue-cli-01-a-new-vue-project/src/components/FriendContact.vue
+++ b/vue-cli-01-a-new-vue-project/src/components/FriendContact.vue
@@ -36,6 +36,7 @@ export default {
             default: false,
         },
     },
+    emits: ["toggle-favorite"],
     data() {
         return {
             detailsAreVisible: false,